Justine Greening: Teacher numbers are at an all-time high: there are 15,500 more teachers than there were in 2010; postgraduate recruitment is at its highest level since 2012-13; and in 2015-16 we welcomed back 4,200 teachers into the classroom, which is an 8% improvement on the 2011 figure. However, we are absolutely not complacent; we continue to invest in teacher recruitment and are actively addressing the issues that teachers cite as a reason for leaving the profession.